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参数资料
| 型号： | NCP1927DR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/24页 |
| 文件大小： | 531K |
| 描述： | IC CTLR PFC/FLYBACK 16-SOIC |
| 标准包装： | 2,500 |
| 系列： | * |
NCP1927
http://onsemi.com
3
FFB
S
R
Q
R
Q
R
S
R
Q
DRV
ZCD
CLK
30 ms
Filter
30 ms
Filter
30 ms
Filter
START_DELAY
PFC_OK
PDRV
PDRV
PDRV
START_DELAY
5V Reg
Clamp
V
DD
V
DD
V
CC
R
9*R
V
SHDN
V
UVP
V
OVP
V
REF
0.955*V
REF
V
ZCD(rising)
V
ZCD(falling)
PFAULT
FFAULT
OVP_int
OVP_int
PFAULT
PFC_OK
I
PControl(boost)
I
PCS
> I
OCP
PFC_OK
I
PSKIP
V
DD
V
standby
Flyback_OVLD
V
CC(on)
V
CC(off)
V
CC(reset)
V
DD
V
DD
Reg
Latch
Shutdown
30 ms
Filter
TSD
FFAULT
S
Q
R
Clamp
V
CC
OSC
SoftSkip
Timer
LEB
FFAULT
V
FFB(open)
SS_enable
CS_STOP
Saw
Saw
Saw
R
FFB
V
FSKIP
V
ILIM
LEB
CS_STOP
V
CS(stop)
R
ramp
Latch
Shutdown
V
ILIM
S AW
SQUARE
Reset
Skip Out
Saw In
I
PCT(charge)
I
UVP
R
GTS
PFAULT
10 ms
Filter
FFAULT
Timer
Reset
Flyback_OVLD
B5
S
V
disable
30 ms
Filter
START_DELAY
WDT
Reset
PDRV
Frequency Clamp
R
t
ON(MAX)
Timer
Jittering
SS_end
Frequency
Foldback
PFM
FM
FFAULT
S
Q
R
SoftStart
Timer
SS_enable
SS_end
0 mA
Detect
I
Shutdown
V
DD
Shutdown
IENABLE
PDRV
V
CC
FFB
FCS
FDRV
GND
POVUV
PFB
PControl
PCT
PZCD
PCS
PSKIP
GTS
GOS Timer
GTS Timer
* Values are typical values
* All latches are Reset Dominant
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